The current version of 3CX Phone System is 20.0.9.995 (as of 21/07/2026). patchletter checks the official source daily and emails you new releases.
3CX Phone System at a glance
3CX is a software-based PBX and unified-communications platform, common in SMBs. 3CX ships regular updates plus security fixes; as an internet-facing communications system — and following a notable supply-chain incident — timely patching and careful hardening matter.
For admins the update path runs through the 3CX management console; take a backup before larger updates and read the release notes. Because the system is reachable from the internet (SIP, web client, provisioning), keep it patched, restrict management access, and follow 3CX's security guidance (firewall rules, allowed IPs, secure SIP). Verify trunks, extensions and the web client after updates. Watch the version and its support status, and subscribe to 3CX security notices so critical updates aren't missed.
Version history & changelog · as detected by patchletter
| Version | Channel | Date | Notes |
|---|---|---|---|
| 20.0.9.995 | STABLE | 21/07/2026 | Release notes → |
| V20 Update 10 | STABLE | 30/07/2026 | Release notes → |
| V20 Update 9 | STABLE | 16/06/2026 | Release notes → |
| V5 | STABLE | 27/07/2026 | Release notes → |
Frequently asked questions
- What is the latest version of 3CX Phone System?
- 3CX Phone System 20.0.9.995, released 21/07/2026. patchletter checks the vendor's official source daily for new releases.
- Where can I find the 3CX Phone System release notes?
- The version history above links to the vendor's official release notes where the vendor publishes them. patchletter deliberately stores no vendor full texts.
- How do I get notified about new 3CX Phone System updates?
- Tick 3CX Phone System off in the catalogue and leave your address. From then on new versions go out by email — one at a time, or bundled in the daily or weekly digest.
An email as soon as a new 3CX Phone System version ships
We reconcile the vendor source daily. When a new version appears, it lands in your inbox right away or bundled as a digest. The update email is free and ends with one click. Alerts about vulnerabilities and end of support are part of patchletter Pro.
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[](https://patchletter.com/en/software/3cx)https://patchletter.com/badge/3cx.svgAlso available: ?v=eol (end of support) and ?v=cve (actively exploited).
